Spinning cotton and other fibers or fibrous material.



G. LISTER. SPINNING COTTON AND OTHER FIBERS 0R FIBROUS MATERIAL.

APPLICATION FILED NOV. 8; 1912.

Patented Jan.26,1915'.

ZU'ZZueSSeJ UNITED STATES PATENT UFFIQEQ CHARLES LISTER, OF BANGALUR, MYSORE STATE, INDIA- SPINNING COTTON AND OTHER FIBERS OR FIBROUS MATERIAL.

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Application filed November 8, 1912.

To all whom it may concern:

Be it known that I, CHARLES Lrsrnn, a subject of the King of England, residing at Agraharam Road, Bangalur city, Mysore State, India, have invented new and useful Improvements in and Connected with Spinning Cotton and other Fibers or Fibrous lvIaterial, of which the following is a specification.

This invention has reference to spinning, and has primarily for its objects and effects, among others, to provide improvements in connection with the spinning of wool, cotton, jute, and other fibers, whereby a. sliver or thread is rendered better able to withstand the strain put upon it by ring or cap spinning, and an inferior material is en abled to be spun or made use of in a spinning machine, at the same speed as, or at a higher speed than that at which good or long sliver is spun.

According to this invention, a preliminary twist is imparted to a sliver or the like before any drawing or stretching of it takes place; and the means for imparting the preliminary twist or spinning, or what may be termed pro-spinning, is disposed in a suitable manner in the cap or ring frame or machine.

The preliminary twisting is a relatively slight one, and is without any drawing or stretching of the sliver or untwisted fiber. The effect of this preliminary twisting or spinning is that it considerably strengthens the sliver or thread, and has the eifect above described; and enables the known or existing cap or ring frames or machines to be made use of for spinning lower qualities of fiber, and also good qualities of sliver or the like to be spun at a higher speed than is at present possible; further the friction of the thread in the preliminary spinning reduces the drag on the sliver at the, point at which it is delivered. ,A suitable form of means for effecting this pre-spinning comprises a spindle fitted with means for enabling motion to be imparted to it, and having parts provided with longitudinal passages. These passages are axially disposed, and extend to the circumference of the spindle, and serve for the introduction of the sliver or the like on to the spindle, and for its delivery from the circumference to the axis of the spindle, at the opposite end to that at which it is introduced to it. After the preliminary twist has been imparted to the Specification of Letters Patent.

Patented Jan. 26, 1915. Serial No. 730,272.

sliver or the like, it is led to the cap or ring frame, for the usual twisting and drawing.

In the drawings hereto annexed, Figure l is a general diagrammatic view illustrating the invention applied to a spinning frame; while Fig. 2 is a vertical section, and Fig. 3 a plan of the pre-spinning appliance, according to this invention.

In the drawings, a represents the delivery rollers; Z) is the sliver or thread; 0 is the pre-spinning device; and d is the cap spindle.

In action, the sliver or thread I) is first passed through the delivery rollers a, then through the pre-spinner c, and then to the cap or ring spindle (Z. In this action, with each revolution of the pie-spinner, a complete turn is given to the sliver or thread between itself and the delivery rollers a; the thread being continuously passed forward, and drawn through the pre-spinner to the spindle 0Z below. The pie-spinner or twister in the case shown, is carried on a bar or frame 6, extending along the machine, say where the glass rod for center ing the thread or the lappit hooks or eyes are usually placed; and it consists of a spindle f secured to a pulley g mounted over the bearing 7t, fixed on the bar 6; and having a hole 2' through it at the upper end, passing in at its center and coming out to one side, and another hole 7: in its lower part, which enters at the side, and terminates in the end of the spindle. The pulley g is revolved by a band is, which passes around the pulley g, and over a suitable driving roller or pulley.

In spinning, prior to this invention, with the ordinary machines, the centrifugal action, as well as the pull from the bobbin, puts a severe strain on the sliver or thread, as it leaves the rollers 54; but by this invention, this is entirely obviated, as the friction of the sliver or thread on the pre-spinner absorbs this.

Under this invention, first, a leading twist is put in the sliver or thread without undue strain; and, secondly, the fibers of the sliver will have already become a thread before coming under the action of the spinning ring or cap and spindle. In some cases, the pre-spinner and the cap or ring spindle each takes a part of the spinning work, in which case the ring or cap spindle is driven at a higher speed than the pre-spinner. In other cases, the ring or cap spindle is only used for winding on to the bobbin; but the former method enables a greater production to be accomplished. That is to say, if the prespinner and the cap or ring spindle are both driven at the same speed, the ring or cap spindle is doing no work, only winding the thread on to the bobbin; but if it be driven faster than the pre-spinner, it imparts a fur ther twist to the thread or sliver, between the pro-spinner and the ring or cap. By the use of this invention, in addition to the effects and advantages as above specified, ac complished by it, the work now done on flier frames at slower speeds, can by the use of this pre-spinner be done on ring or other frames, at a greatly enhanced speed, and a spinning machine can be speeded up.

It is to be stated that while the form of pre-spinner shown in the drawings is simple, the invention is not restricted to this form; and what is claimed as novel in re spect of the herein described invention, is specified or set out in the claiming clause concluding the specification.

What I claim is In means for spinning thread, etc., the combination of a pair of feeding rolls, a spinning device including a spindle having a vertical opening at its upper end, the bottom of said opening extending through the .1,

site the bottom of the upper opening, whereby to produce a spiral lead to a sliver passed through said openings whereby tension on the lower end of the sliver may be exerted by drawing therein withorut exerting as great tension on the upper end of said sliver, means above the plane of the upper opening in the spindle for rotating the spinning device to preliminarily twist the thread in the upper vertical opening before the thread is drawn and to assist in further twisting the thread between the two openings in the periphery of the spindle while being drawn, a winding device to receive and draw the twisted threads, and means for rotating the winding device at a greater speed than the spinning device.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES LISTER.

Witnesses:

W. H; HAYLEs, JAMns Boo'rrr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

